Jenelle and Barb start fighting again and she decides to move in with her friend Tori. Kieffer reenters the picture and they decide to give it another shot. Chelsea searches for a new job to help pay rent and become independent, but her relationship with Adam is going downhill fast. Corey wants a new job and Leah is excited to move into a bigger house away from his parents. However, after thinking Ali was okay, they get an alarming letter that says she still may have some unknown genetic problem. Jo confronts Kailyn about filing for child support and they get into a big argument about who is the more responsible parent.